Hi !I use JDK6 (with JRE) and when i try to run netbeans (and not only with netbeans !) it results in following error: ## An unexpected error has been detected by Java Runtime Environment:## SIGSEGV (0xb) at pc=0x00002ba542d1dcf4, pid=2307, tid=1092860240## Java VM: Java HotSpot(TM) 64-Bit Server ...

Hello,I get the following error periodically which causes my Tomcat service to stop. There do not seem to be any exceptions listed in my log files, only the "An unrecoverable stack overflow has occurred." error listed in the jakarta_service_yyyymmdd.log file.I am running tomcat5.5.23 on a ...

Apparently, HotSpot starts some number of internal threads.In my environment (SUSE Linux 10.1, JDK 5, Intel Dual Core) , when I run a simple single-threaded test program(just your basic 'hello world'), I see 12 threads running. There are probably 2 GC threads, 1 main thread, what are the ...

I am running JDK 1.4.2 and I was wondering, can the "Perm Heap" can actually shrink or not?If not in the JDK 1.4.2 is it available later?If so, then what determines if the class info is no longer referenced and therefore can be garbage collected. Is it after all of the objects of that type no ...

Our application server weblogic8.1 sp6 has been crashing in production every week with HotSpot Virtual Machine Error : 11 and Error ID : 4F530E43505002EF. There is no consistent pattern which tells us what is causing this problem. When I gdb the core file, it tells that "Program terminated with ...

Hello,Recently, we have had a memory leak problem in an application server. We had the jvm parameters -Xms1024m -Xmx2048m.To simplify the analysis, I changed this to -Xms2048m -Xmx2048m. So, no heap resizing. (we have jdk 1.4.2_05)Weird thing is, since doing this, we don't see the problem. ...

Does anyone know if the young/old/permanent heap sections are dynamically resized during the life of an application ? By resizing I mean something different than ramp-up to the correct size, or increase/decrease as the whole heap changes in size. I've been reading gc tuning docs and it seems ...

On load testing the application we see that - everything works fine for the first 35 minutes till we hit the first full GC after the first full GC, which happened after 35 minutes (after about 500 minor GCs), strangely the full GCs happen very frequently, once about every 2-3 minutes (once ...

There appears to be a regression in 1.6.0_01-b06 vs. 1.5.0_09-b03: modifications made to an instance field while in a synchronized block are not visible in a subsequent synchronized block. I.e. register or processor memory caches are not being flushed and/or reloaded.A hacky workaround can be ...

two remote machines were connected and application was developed to enable chat but after a random period of time the application exists leaving an error message in the console window...T]he following is the error message## An unexpected error has been detected by HotSpot Virtual Machine:## ...

I just upgraded to 6.0 and noticed that its no longer possible to use the server VM on 32 bit windows.Can someone please explain the rationale for this design decision?Also, what sort of performance penalty can I expect?Thank you.

referencing document,https://java.sun.com/j2se/reference/whitepapers/memorymanagement_whitepaper.pdfwith the flags:XX:+UseParallelGCXX:+UseParallelOldGCWhen a full GC occurs, does the mark-sweep-compact algorithm get applied to the young generation?

# HotSpot Virtual Machine Error, Internal Error# Please report this error at# http://java.sun.com/cgi-bin/bugreport.cgi## Java VM: Java HotSpot(TM) Client VM (1.4.2_01-b06 mixed mode)## Error ID: 4E4D4554484F440E435050019E## Problematic Thread: prio=1 tid=0x556f8b18 nid=0x7f2f runnable#Heap at ...

I need help please! Below is the error message I get when, suddenly, any and all windows on my computer close out by themselves leaving me at my desktop. I did the java test and found that I was running on an older version of java. I downloaded the latest version but to no avail! This happens ...

I've posted a message on the Hot Spot Internals forum regarding this error I've been seeing fairly often now, it's happening when in Internet Explorer on the Web usually playing some game. This is the error message I get after it just drops me out of the Internet........Is this a known ...

When I use Java 1.6.0:Tomcat started using startup.bat works fine.When started using tomcat5.exe does nothing, and exits.When registered as a Windows service, and started using:net start tomcat5There is a meaningless error message on the console, but injakarta_service.log I find:[2006-12-21 ...

Hi there!I am very sorry for loosing your precious "mind resources" but some help is necessary. I am relatively new to java, though I have some programming knowledge. I am making a school project, which is a lame simulation of galacitc motion, i. e. you have a plane (galaxy), you add stars, you ...

Hi AllI am getting this error log in hs_err_pid3284 log fileUnexpected Signal : EXCEPTION_ACCESS_VIOLATION (0xc0000005) occurred at PC=0x8077C52Function=[Unknown.]Library=C:\j2sdk1.4.2_05\jre\bin\client\jvm.dllNOTE: We are unable to locate the function name symbol for the errorjust occurred. ...

It Clearly says GetLocalName What is the this its is lokking for ?Regards## An unexpected error has been detected by HotSpot Virtual Machine:## SIGILL (0x4) at pc=0xb0985fa7, pid=3297, tid=2978110384## Java VM: Java HotSpot(TM) Client VM (1.5.0_03-b07 mixed mode, sharing)# Problematic frame:# C ...

We are using JRE1.4._10 on Windows with large heaps min=max=1400MWe are also using CMS in order to reduce pauses.Two problems are experienced:On startup we see a GC pause which takes more than an hour (it happens in one every four restarts)On heavy load from time to time there are 2-3 minutes ...

I have two java class files which are about 1MB in size. When I decompile them I get a file of size about 30KB. When these classes are run they show an iconified frame, but there is no icon in the folder (The class has been copied to a new location). It seems that the class has embedded files ...

Hi,I've written a small application which plays audio in real time. Everything works fine, except when I use it on a computer where memory is scarce. In particular, I get audio glitches whenever a full garbage collection occurs.I suspect this happens because most of the heap has been swapped ...

(Context: I'm new to Java, not to development)I would like to have my frequently-executed code in a long-running enumeration/calculation application compiled and to have methods inlined. I can't seem to achieve this except in cases that are unpredictable (to me).I am running jre 5.0.90.3 on ...

I've been getting a lot of JVM crashes, upgraded from Java 5 to Java 6 and still no dice. Looks as though it crashes during GC and this affects both JVMs. Included are my first and latest crash logs (there are many more!) The app that is crashing is Intellij 5.1Here is my first crash log## An ...

I am experiencing repeated Hotspot crashes with JDK 1.5.0_09-b03 when using Eclipse 3.2.1. The crashes began when I upgraded from Windows XP to Vista (x86) so I assume that there is a compatibility problem. (Yes, I am running the final release version of Vista, not a beta). Most of the crashes ...

Hi there,We run a webapp on Tomcat 4.1.29 + JDK 1.4.2_02-b03. We've been seeing memory issues in our production environment. It's not an OutOfMemoryError or StackOverflowError or anything of that sort. The symptoms are described below:Stage 1: GC running normally with Minor GC mostly, with ...

hello everybody,i completed a swing project and i want to make its as a setup file so i installed in any computer, how this posiible.......... plz help its urgent....

The "Features and Enhancements" page lists "Class-loader constraints" as a feature/enhancement for Java 6, without providing details or a link: http://java.sun.com/javase/6/webnotes/features.html(near the bottom of the list)So, what was actually done? Code inspection/cleanup? Writing up an ...

I've been sent a couple of error files which were generated when a couple of processes crashed (one file for each process), and I don't really know what could be causing the issue. They both look to be database related, but the errors occur within libjvm.so. Is this a problem with the ...

Hi,I've been reading up on the inner workings of the different GC algorithms and I thought I had a good handle on them all, but I'm a bit baffled with the behaviour I'm seeing. I'm running a server process on RH Linux, AMD 64-bit. The machine has 4G of physical memory and two processors. My ...

I am using IE version: 6.0.2900.2180.xpsp.050928-1517; and Windows XP Professional Version 2002 Service Pack 2I was opening a link from the ESD HKgov website, the page was checking my settings to verify compatibility to their program (Window Titled: Check Client Config).Here is the link: ...

Hi,I've been programming Java professionally for 10 years and I've seen som weird sh*t over the years, but this one takes the cake:I have a huge complex application that does all kinds of funny stuff with doubles. In a specific test case, one method is called ~3000 times and covers 25% of ...

The JVM on my computer crashes alot. (Meaning, I almost never get to keep my programs running for more than an hour unless I'm not using them while they run. Frequently the crash will occur while my programs, Eclipse/NetBeans are starting up.) Originally I noticed the problem using Eclipse, ...

Here is the output from gdb against the error. If anyone has an idea of what could be causing it, please let me know.ThanksShankarGNU gdb Red Hat Linux (6.3.0.0-1.90rh)Copyright 2004 Free Software Foundation, Inc.GDB is free software, covered by the GNU General Public License, and you ...

Hellow expertsconfig-Java 1.5.0.08tomcat 5.5.17Os :Ubuntu Dapper Linux and Windows Xp PofessionalJasperreports1.2.2.jar for reportsMysql Databse 5.0i am working on a Swings based Java appl where i am using jasper reports.the database is Mysql.i have some reports which are simple listing of ...

Expected YGC times are around 0.1s. "Sometimes" my YGC times jump to 10s level and stay there. Because the YGC is long and frequent JVM spends high portion (10%+) of time in GC. It is not a lonely GC peak, it is a GC duration that is consistenly above some level (3s, 5s, 10s or even 20s).Our ...

I go through this every year or so - why is it so hard to find out what the maximum memory that can be used for each JRE?My very simple question is "what is the maximum amount of memory that my application can use?"Ideally someone has found this elusive table that would at least report the ...

I am a graduate student looking into alternative synchronization implementations for the Hotspot JVM. I am perusing the source code for Java 1.4, in particular for Solaris and the SPARC ISA. Thus far I have found the following files that deal with locking and ...

Hi,Could someone from Sun tell me whether JNI invocation API for the 1.5.0_07 Windows JVM supports .NET clients compiled with Visual C++ 8?I have an ASP.NET application that calls into the JVM through the JNI invocation API. I know that there were problems with VC7 clients calling into the 1.3 ...

Hi ,I Migrated an application from Weblogic 6.1 to Weblogic 8.1. It is deployed properly and I am able to start the server. When I try to open login page it gives the following error as shown below:I tried many ways changing the memory settings, etc. but still i get the same error. It might be ...

Cross posting from http://forum.java.sun.com/thread.jspa?threadID=756193I am using jdk 1.4.2.07 and run into the following error with the VM crashing with a defunct process:"Fatal: Stack size too small. Use 'java -Xss' to increase default stack size." on Linux. Does this imply a JVM bug given ...

Has anyone seen this? The dll in question is usually ntdll.dll or awt.dll.Thank you in advance.## An unexpected error has been detected by HotSpot Virtual Machine:## EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x7c9010f3, pid=3856, tid=5344## Java VM: Java HotSpot(TM) Client VM (1.5.0_07-b03 ...

## An unexpected error has been detected by HotSpot Virtual Machine:## EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x74346183, pid=3252, tid=2956## Java VM: Java HotSpot(TM) Client VM (1.5.0_07-b03 mixed mode, sharing)# Problematic frame:# C [ODBC32.dll+0x26183]## An error report file with ...

As you may have noticed posts in this form lose all formatting when you post even when you use formatting tags. Unfortunatley this well known yet mysteriously unresolved issue is true for almost all of the recently added forums, which seems a pity because several, like this one seem to be in ...

Hi,It might sound sacrilege, but I would like to have better, may I say explicit control over memory handling, especially garbage collection.I am working on an application which has to read 120+ million data records from a file, sort and summarize them (and write them into another file). I ...

Hello all,I am trying to figure out what is the difference between perm space, perm gen, old gen and tenure. On a lot of sights they use different combinations of these as synonyms. I find that difficult to believe when ...

When monitoring a process with prstat -Lmap <pid> on 1.4.2_09/Solaris 9 sun4u, with the default sampling rate I see signals ranging from 1-10K on the hotter threads. I've seen this on a 1.5.0 JVM as well in a different process but was curious what types of JVM activities cause a thread ...

I'm trying to workaround a JVM crash issue by disabling hotspot compilation for the method that's causing the crash.In Sun's JVM There is a -XX:+PrintCompilation switch which tells me what method is being compiled. Is there a equivalent JVM option for HP's JVM?

Unexpected Signal : 11 occurred at PC=0xC56DDCD0Function=_shlInitLibrary=/opt/java1.4/jre/lib/PA_RISC2.0/server/libjvm.slCurrent Java thread:"main" prio=2 tid=00059ba8 nid=1 lwp_id=7172319 runnable [0x77ff2000..0x77ff1910]at oracle.jdbc.driver.T2CConnection.t2cCreateState(Native Method)at ...

Im getting this error in hs_err log file when my application is crashing.Unexpected Signal : 11 occurred at PC=0xFEDE14F8Function=[Unknown. Nearest: JVM_FillInStackTrace+0x4D70]Current Java thread:Dynamic ...